DOI: https://doi.org/10.36347/sjavs.2025.v12i01.002

Pages: 26-34

Information barrier on the use of fertilizer on common bean is a major problem on production and productivity of common bean at western Oromia Ethiopia. To overcome the problem the experiment was conducted to identify effect of NPSB fertilizer application rate and common bean varieties to produce better seed yields. A field experiment consisting of the combination of three common bean varieties and four fertilizer application rates were employed Randomized Complete Block in factorial arrangements with three replications. Data on phenological, yield components and yield were collected and analyzed. The results of the study revealed that significantly the highest number of pods per plant (18.7). The highest seed yield was obtained at the highest combined rates (150kg NPS ha-1 + Nasir variety (2199kg ha-1) while the lowest seed yield (710kg ha-1) was obtained from Loko variety treated without application of NPSB. Therefore, based on net benefit (77872 ETB) analysis and the value of MRR% (2,294.94) of the farmers could be used Nasir variety combined with 150 to obtain maximum yield and 100kg ha-1 to attain optimum yield.